Roost Site Selection by Red Knots (Calidris canutus rufa) in Delaware Bay

Red Knots;Calidris Canutus Rufa;Delaware Bay;Natural Resources and Environment

Zimmerman, KathrynLow, Bobbi ;

University of Michigan

关键词: Red Knots;    Calidris Canutus Rufa;    Delaware Bay;    Natural Resources and Environment;   

Others  :  https://deepblue.lib.umich.edu/bitstream/handle/2027.42/78411/MS_Thesis-Kathryn%20Zimmerman-Dec2010.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

I monitored the roosting preferences of 53 Red Knots (Calidris canutus rufa) during theirnorthbound migratory stopover in Delaware Bay in 2008 and 2009. The goal was to locatethe high tide daytime and nighttime roosts as well as to determine the habitat characteristicsthat create suitable roost sites. Radio-tracking data were used in collaboration with aerialphotos to map and locate high tide roost sites. Habitat surveys were used to determineenvironmental characteristics that correlated with roost site use. Birds preferred shorelinehabitat during the day, but preferred inland habitat at night. Birds’ preference for inland roostsites increased significantly at spring tides. The results of this study can inform local resourcemanagers about the restoration and conservation of roost sites in Delaware Bay forshorebirds.